Aqueduct.



R. R- ROBERTSON.

AQUEDUCT.

APPLICATION FILED MAY 8, 1915.

Patented J 11116 20, 1916;

www.

2 SHEETS-SHEET I.

R. R. ROBERTSON.

AQUEDUCT.

APPLICATION FILED MAY 8. I9l5.

Patented June 20, 191R 2 SHEETS-SHEET 2.

" ma COLUMBIA PLANOORAPH co., WAsmNuToN, o. c.

ROBERT E. ROBERTSON, OF LA GRANGE, ILLINOIS.

AQUEDUOT.

Specification of Letters Patent.

Patented June 20', 1916.

Application filed. May 8, 1915. Serial N o. 2%,787.

To all whom 2'25 may concern:

Be it known that I, ROBERT R. ROBERTSON, a citizen of the United States, residing at La Grange, in the county of Cook and State of Illinois, have invented new and useful Improvements in Aqueducts, of which the following is a full, clear, concise, and eXact description, reference being had to the accompanying drawing, forming a part of this specification.

My invention relates to aqueducts, and more specifically to means for providing a water tight joint between adjacent sections of sheet material which are connected t0- gether to form the aqueduct.

Among the objects of my invention is to provide a device of this character which will be simple in construction and efficient in use.

Further objects will appear from the detailed description to follow and from the appended claims.

In the drawings in which I have shown various modifications of my invention Figure 1 is a perspective view showing a form of connecting device which is formed from a single strip of sheet material; Fig. 2 is a side elevation of two sections of the aqueduct showing the corners of the sections bent over to provide means for engaging the connecting strip to properly position the' parts; Fig. 3 is a side elevation showing the sections and clamping band in position; Fig. 4 is a transverse section showing the clamping band before the ends are rolled together to form the joint between the sections; Fig. 5 is a transverse section showing the ends of the clamping hand rolled together to force the aqueduct sections into water tight engagement with each other; Fig. 6 is a plan view showing the two sections and clamping band in position and the ends of the clamping band rolled together, and showing also the key or tool for engaging the ends of the clamping band; Fig. 7 is a perspective view of the key or tool for rolling the ends ofthe clamping band together; Fig. 8 is a transverse section of a modification in which the device for making a water tight connection comprises two strips, each'having one of its ends firmly secured to an end of the other strip, the opposite ends of the strips being rolled together to force the aqueduct sec- .tool, whereby tions together; and Fig. 9 is a transverse tions with respect thereto, and to hold the connecting device in place. The connecting device 12 comprises an integral strip of suit able material, such as sheet metal, bent back upon itself, as shown at 13, to form an outer curved portion 1 1 for engagement with the outer section 10, and an inner curved portion 15 for engagement with the inner section 10. The ends of the portions 14: and 15 extend upwardly beyond the sections 10, as shown at 16, in position to engage the slot 17 of a tubular key or tool 18 a portion of which is flattened, as shown at 19, for engagement with a wrench or other suitable the projecting ends 16 may be rolled together, as shown at 20, Fig. 5.

In this device there are two ways in which the aqueduct sections and clamping band may be assembled; the sections 10 may be placed with their ends overlapping and one within the other and the ends 16 of the clamping device separated slightly to permit the device to he slipped in place by straddling both sections until the parts are in the Josition shown in Fig. 4, after which the en s 16 may be rolled together until they are in the position shown at 20in Fig. 5, or the clamping device 12 may be slipped in place over the end of one of the sections 10 and slipped along the section far enough to allow the end of another section 10 to be overlapped on the first section, after which the clamping device 12 may be slipped back until the portions 14: and 15 lie between the to form outer and inner sections 26 and 27,

effect of turning the key or tool 18 is to make a sharp bend in the ends'lG to prevent relative slippage therebetween. Further turning of the key 18 will result in winding the outer portion 1d around the inner portion 15. T 7

As the portion 14 is wound on the outside a greater length of the outside portion will be wound up on the roll which will result in drawing the portions 14: and 15 closer together and clamping the sections 10 between them to form a water tight joint.

In the modification of Fig. 8 the clamping device 21 comprises an outer strip 22 and an inner strip 23, which may be of sheet metal, one end of each of which are clamped together, as shown at 2 1, and the other ends of which may be rolled together by means of the tool 18, as shown at 25, to clamp thesections 10 together in a manner similar to 'thatdescribed in connection with Figs. 1

In the modification of Fig. 9, the clamping device is formed of a single strip which may be of sheet metal, which is bent upon itself I the end'of the outer section beingbent over the end of the inner section, as shown at 28,

to preventrelativeslippage between the sections. In this modification the projecting ends 29 mayberolled together by means of pliers or other suitable instruments without the aid of a special tool.

I While in the various modifications I have shown the clamping device as holding the aqueduct sections together in overlapping i 1 position so that the water tight joint is jformedbetween the aqueduct sections them selves, it is obvious that the aqueduct sec- 40,

'tions'may be placed together to form a butt {joint and .theclamping device placed in position' to engage: anend of each section and the ends ofthe clampin'g device rolled tos Having thus described my invention what 7 'gether, in which 'casethe water tight joint will be formed between the inner strip of the clamping device andthe inner surface of the aqueduct sections.

I claim as new and desire to secure by Let qters Patent is 1, The combination with two overlapping.

. trough-like sections of an aqueduct, of means for forcing said sections intowatertight engagement with each other comprising a compression member engaging the inner section,

' a tension member engaging the outer, section, and means for exerting compression V on saidv compression member and tension on said tension member, said last means-compr sing meansforroll ng said tension mem-- her about said compression member.

'2. A device for forcing two overlapping] flcurved sections of an aqueduct into water tightengagement comprising a curved1com ,ing a water tig for engagement with the outer section, each,

of said members comprising a single integral piece of sheet material, one end of the tension member being rolled about the adjacent end of the compression member.

4. A device for forcing two overlapping curved sections of an aqueduct into water tight engagement comprising a curved compression member for engagement with the inner section, and a curved tension member for engagement with the outer section, both said members havin flexible inter-engaging portions for extending beyond the edge of the aqueduct whereby a portion of said tension member may be bent around a portion of the compression member, and means for bending said portions comprising a tube having a slot in its side to receive the ends of said inter-engaging portions.

5. The combination with two trough like sections of an aqlllleduct, of means for effectt joint therebetween comprising two members of sheet material of sufiicient flexibility and so constructed and located relative to each other that one may be readily rolled about the other. I

6. The combination with two trough-like sections of an aqueduct, of means for connecting said sections to form a Water tight I oint comprising a compression member engaging the inner surface of one of said sections, a tension member engaging the outer surface of one of said sections, and means for exerting compression on said compression member and tension on said tension member, said last means comprising means for rolling said tension member about said compression member.

7. The combination with two trough-like sections of an aqueduct, of means for efl'ecting a water tight joint therebetween comprising two members of sheet material of sufficient flexibility and so constructed and located relative to each other that one may be rolled about the other and means for rolling one of said members about the other.

8. device for effecting a water tight connection comprising inner and outer curved members of sheet material, means for preventing relative movement between one end of the inner member and one end of the outer memher, and means for causing relative movement between the other ends to draw the members toward each other, said last means comprising two members of sheet material of suflicient flexibility and so constructed and located relative to each other that one may be rolled about the other and means for rolling one of said members about the other.

In witness whereof, I have hereunto subscribed my name in the presence of two witnesses.

ROBERT R. ROBERTSON.

Copies of this patent may he obtained for five cents; each, by addreesing the "Commisnioner of Patemte,

Mhington, D. G." 

